/Engine/Source/Developer/SourceControl/Public/ISourceControlProvider.h
Register branches to query for state in addition to the current branch
void RegisterStateBranches ( const [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > & BranchNames, const [FString](API\Runtime\Core\Containers\FString) & ContentRoot )